CN114775666B - Control structure of bottom plate water pressure in deep foundation pit bottom plate construction - Google Patents
Control structure of bottom plate water pressure in deep foundation pit bottom plate construction Download PDFInfo
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- CN114775666B CN114775666B CN202210607847.0A CN202210607847A CN114775666B CN 114775666 B CN114775666 B CN 114775666B CN 202210607847 A CN202210607847 A CN 202210607847A CN 114775666 B CN114775666 B CN 114775666B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000011083 cement mortar Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 238000005086 pumping Methods 0.000 description 7
- 239000003673 groundwater Substances 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 101150054854 POU1F1 gene Proteins 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a control structure of bottom plate water pressure in deep foundation pit bottom plate construction, which comprises a foundation pit and a water collecting well, wherein an underground continuous wall is arranged outside the foundation pit, the bottom of the foundation pit is a stratum, at least one blind ditch is arranged on the stratum, a communication ditch is arranged between two adjacent blind ditches, the communication ditch is communicated with the blind ditches, filling layers are respectively arranged in the communication ditch and the blind ditches, an isolation layer is arranged at the top of the filling layer, the top of the isolation layer is provided with the foundation pit bottom plate, a plurality of drain pipes are arranged in the filling layer, the top ends of the drain pipes penetrate through the isolation layer and the foundation pit bottom plate and are provided with self-flow pressure reducing valves, a water collecting main pipe is arranged above the drain pipes, and an automatic drainage mechanism is arranged at the upper part of the water collecting well. The invention is easy to control the water pressure at the bottom plate, so that the water pressure can meet the requirements of the bottom plate construction and normal service, the safety and stability of surrounding buildings can be effectively ensured, and the construction is more convenient.
Description
Technical Field
The invention relates to the field of deep foundation pit construction, in particular to a control structure for water pressure of a bottom plate in deep foundation pit bottom plate construction.
Background
When the deep foundation pit (deep working well) is constructed, particularly in the strong weathered water-permeable stratum, the construction difficulty of the deep foundation pit (deep working well) is increased due to larger hydraulic pressure, and if the deep foundation pit (deep working well) water burst and other problems are caused by improper treatment, the construction of the deep foundation pit (deep working well) in the complex geological environment such as the strong weathered water-rich stratum is provided with higher requirements.
When the deep foundation pit (deep working well) is constructed to the bottom plate, the requirement of the bottom plate construction on the environment is met, for example, the influence on concrete pouring is reduced by preventing groundwater from rushing out, and the conventional precipitation method of the deep foundation pit (deep working well) is well point precipitation, is used for reducing the groundwater level, and can meet the requirement of the common working well bottom plate construction.
However, when encountering a strong-weathered strong-permeable layer with higher underground water level, if a traditional well-point precipitation method is adopted, the precipitation range and precipitation amount are difficult to control, so that the construction cost and the construction time are increased, meanwhile, the rapid reduction of the underground water level can generate larger seepage force to enable the surrounding soil layer to generate sedimentation which is difficult to estimate, the stability of surrounding buildings is influenced, and even the life health of people can be influenced.
Therefore, it is necessary to solve the above problems by inventing a control structure for the water pressure of the bottom plate in the construction of the bottom plate of the deep foundation pit.
Disclosure of Invention
The invention aims to provide a control structure for the water pressure of a bottom plate in deep foundation pit bottom plate construction, so as to solve the problems that the existing water pressure control structure is difficult to control the water pressure, the sedimentation which is difficult to estimate is easy to generate on a surrounding soil layer, the bottom plate pouring risk is high, and safety accidents are easy to occur.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a control structure of bottom plate water pressure in deep basal pit foundation ditch bottom plate construction, includes foundation ditch and catch basin, the foundation ditch is provided with the underground continuous wall outward, the foundation ditch bottom is the stratum, laid at least one blind ditch on the stratum, laid the intercommunication ditch between two adjacent blind ditches, the intercommunication ditch link up with the blind ditch, all laid the filling layer in intercommunication ditch and the blind ditch, the top of filling layer is equipped with the isolation layer, the foundation ditch bottom plate is installed at the top of isolation layer, just install a plurality of drain pipe in the filling layer, the top of drain pipe runs through isolation layer and foundation ditch bottom plate and installs the decompression valve that flows automatically, the top of drain pipe is equipped with the collecting main, the collecting main passes through the pipeline and links to each other with the delivery port of decompression valve that flows automatically, the total outlet pipe is installed at the top of collecting main, just the top of foundation ditch is equipped with water pump, water inlet end and total outlet pipe link to each other, water pump's play water end is connected with the drainage pipe, the drainage pipe is kept away from the one end of water pump and is extended to the water inlet of catch basin, just automatic upper portion of catch basin installs automatic drainage mechanism and installs the decompression valve, two telescopic link to each other piston sleeve and piston one end, piston one end is connected with the piston.
Preferably, the end cover is a cylindrical structure with one end open, the movable ring plate is installed at the open end of the end cover, one side of the movable ring plate, which is far away from the end cover, is provided with a fixed ring plate, and the fixed ring plate is sleeved outside the sleeve and is fixedly connected with the sleeve.
Preferably, two telescopic connecting pieces are symmetrical, each telescopic connecting piece comprises a movable barrel and a fixed rod, one end of each fixed rod penetrates through the movable barrel and is provided with a baffle, the other end of each fixed rod is provided with a mounting plate, the mounting plates are fixedly connected with the fixed ring plates, the movable barrels are in sliding connection with the fixed rods, and one end of each movable barrel, far away from the mounting plates, is fixedly connected with the movable ring plates.
Preferably, the end cover is close to the one end of locating lever and installs the fixed column, the center department of fixed column has seted up the blind hole, blind hole and locating lever phase-match.
Preferably, municipal pipe network has been laid to the outside of sump pit, just the sump pit is linked together with municipal pipe network through automatic drainage mechanism.
Preferably, the drain pipe is a metal pipe, and the diameter of the drain pipe is 38 mm-110 mm.
Preferably, a controller is arranged on the outer wall of the water pump, and the controller is electrically connected with the water pump and the self-flow pressure reducing valve respectively through wires.
Preferably, cement mortar layers are smeared on the channel walls of the communicating channels and the blind channels, and the upper side and the lower side of the filling layer are respectively a pebble layer and a gravel layer.
Preferably, the isolating layer is a concrete layer, and the thickness of the isolating layer is 100mm.
In the technical scheme, the invention has the technical effects and advantages that:
1. the invention is easy to control the water pressure at the bottom plate, so that the water pressure can meet the requirements of the bottom plate construction and normal service, the safety and stability of surrounding buildings can be effectively ensured, and the construction is more convenient;
2. through the sleeve, the piston, the spring, the end cover, the positioning rod, the fixing column and the blind hole, water in the water collecting well can automatically flow into the municipal pipe network, and the water in the water collecting well is effectively prevented from overflowing;
3. in the drainage process, the end cover is limited by the movable barrel, the baffle and the fixed rod, so that the overall stability can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of FIG. 2A in accordance with the present invention;
FIG. 4 is a layout of blind ditches and communicating ditches according to the present invention;
FIG. 5 is a cross-sectional view of a water collection well of the present invention;
fig. 6 is a cross-sectional view of the drainage mechanism of the present invention.
Reference numerals illustrate:
1. a foundation pit; 2. underground continuous wall; 3. an isolation layer; 4. a formation; 5. a foundation pit bottom plate; 6. a communication groove; 7. blind ditches; 8. a water collecting main pipe; 9. a gravity flow pressure reducing valve; 10. a water pump; 11. a main water outlet pipe; 12. a controller; 13. a drainage conduit; 14. a water collection well; 15. a filling layer; 16. a cement mortar layer; 17. municipal pipe network; 18. a drainage mechanism; 19. an end cap; 20. a sleeve; 21. a piston; 22. a spring; 23. a positioning rod; 24. fixing the column; 25. a blind hole; 26. a fixed ring plate; 27. moving the ring plate; 28. a moving cylinder; 29. a mounting plate; 30. a fixed rod; 31. and a baffle.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The invention provides a control structure of bottom plate water pressure in deep foundation pit bottom plate construction as shown in figures 1-6, which comprises a foundation pit 1 and a collector well 14, wherein an underground continuous wall 2 is arranged outside the foundation pit 1, the bottom of the foundation pit 1 is a stratum 4, at least one blind ditch 7 is arranged on the stratum 4, the depth of the blind ditch 7 can be inconsistent, the blind ditch 7 can extend to obvious water seepage positions in the excavation process, a communication ditch 6 is arranged between two adjacent blind ditches 7, the communication ditch 6 is communicated with the blind ditches 7, filling layers 15 are respectively paved in the communication ditch 6 and the blind ditches 7, an isolation layer 3 is arranged at the top of the filling layer 15, a foundation pit bottom plate 5 is arranged at the top of the isolation layer 3, a plurality of drain pipes are arranged in the filling layers 15, the top ends of the drain pipes penetrate through the isolation layer 3 and the foundation pit bottom plate 5 and are provided with pressure reducing valves 9, the bottom plate water pressure is controlled through the gravity reducing valves 9, the influence of the ground water on the foundation pit bottom plate 5 can be reduced by avoiding the overhigh local pressure, in the drainage process, the bottom plate water pressure is controlled by the self-flow pressure reducing valve 9, the sedimentation of surrounding soil layers caused by the excessive pumping of the ground water is avoided, so as to ensure the safety and stability of buildings around a construction site, a water collecting main pipe 8 is arranged above the water collecting main pipe 8 and is connected with a water outlet of the self-flow pressure reducing valve 9 through a pipeline, a total water outlet pipe 11 is arranged at the top of the water collecting main pipe 8, a water pumping pump 10 is arranged at the top of the foundation pit 1, the water inlet end of the water pumping pump 10 is connected with the total water outlet pipe 11, one end of the water pumping pump 10, far away from the water pumping pump 10, of the water draining pipe 13 extends to the water inlet of a water collecting well 14, an automatic water draining mechanism 18 is arranged at the upper part of the water collecting well 14, the automatic drainage mechanism 18 comprises a sleeve 20 and two telescopic connecting pieces, one end of the sleeve 20 penetrates through the water collecting well 14, the other end of the sleeve 20 is connected with an end cover 19 in a sliding mode, a piston 21 is connected in a sliding mode in the sleeve 20, a positioning rod 23 is arranged at one end of the piston 21, a spring 22 is sleeved on the outer side of the positioning rod 23, two ends of the spring 22 are respectively connected with the end cover 19 and the piston 21, the drainage pipe is a metal pipe, the diameter of the drainage pipe is 38-110 mm, and the drainage pipe is a metal pipe such as a stainless steel pipe, a galvanized steel pipe and the like.
Further, in the above technical scheme, the end cover 19 is a cylindrical structure with one open end, the moving ring plate 27 is installed at the open end of the end cover 19, one side of the moving ring plate 27 away from the end cover 19 is provided with the fixed ring plate 26, the fixed ring plate 26 is sleeved outside the sleeve 20 and fixedly connected with the sleeve 20, two telescopic connecting pieces are symmetrically arranged, each telescopic connecting piece comprises a moving cylinder 28 and a fixed rod 30, one end of the fixed rod 30 penetrates through the moving cylinder 28 and is provided with a baffle 31, the position of the moving cylinder 28 is limited by the baffle 31, the other end of the fixed rod 30 is provided with a mounting plate 29, the mounting plate 29 is fixedly connected with the fixed ring plate 26, the moving cylinder 28 is slidably connected with the fixed rod 30, one end of the moving cylinder 28 away from the mounting plate 29 is fixedly connected with the moving ring plate 27, under the action of water pressure, the end cover 19 drives the moving ring plate 27 to move along the fixed rod 30, and the moving cylinder 28 is limited by the moving cylinder 28, the baffle 31 and the fixed rod 30.
Further, in the above technical solution, the end cap 19 is provided with the fixing post 24 at one end close to the positioning rod 23, a blind hole 25 is provided at the center of the fixing post 24, the blind hole 25 is matched with the positioning rod 23, and the spring 22 is protected by the cooperation of the positioning rod 23 and the blind hole 25.
Furthermore, in the above technical scheme, municipal pipe network 17 has been laid in the outside of sump pit 14, just sump pit 14 is linked together with municipal pipe network 17 through automatic drainage mechanism 18, and unnecessary water in the sump pit 14 can get into municipal pipe network 17 by automatic drainage mechanism 18, can effectively avoid the condition that water overflows in the sump pit 14 to appear.
Further, in the above technical solution, a controller 12 is installed on the outer wall of the water pump 10, the controller 12 is electrically connected with the water pump 10 and the self-flow pressure reducing valve 9 through wires, a hydraulic pressure signal is sent to the controller 12 through the self-flow pressure reducing valve 9, and after the controller 12 processes, it is determined whether to start the water pump 10 to pump groundwater.
Furthermore, in the above technical scheme, the walls of the communicating trench 6 and the blind trench 7 are coated with the cement mortar layer 16, and the upper side and the lower side of the filling layer 15 are respectively a pebble layer and a gravel layer, which play a role in filtering, so that impurities such as silt of groundwater can be effectively filtered, and flowing of concrete aggregate and cement paste is reduced.
Further, in the above technical scheme, isolation layer 3 is the concrete layer, the thickness of isolation layer 3 is 100mm, and isolation layer 3 is used for isolated rivers, can effectively guarantee deep basal pit bottom plate and pour and normal work.
The working principle of the invention is as follows:
during construction, construction of a foundation pit structure is carried out, the working procedure before the foundation pit bottom plate 5 is needed, then, mechanical equipment is used for completing construction of the blind ditch 7 and the communication ditch 6, after a rubble layer and a pebble layer are paved in the blind ditch 7 and the communication ditch 6, drainage pipes are arranged in the blind ditch 7, the distance between adjacent drainage pipes is not less than 0.8 meter, then, an isolation layer 3 is paved (namely, concrete is poured), after a self-flow pressure reducing valve 9 is installed at the top end of the drainage pipes, the self-flow pressure reducing valve 9 is connected with a water collecting main pipe 8 through a pipeline, the water collecting main pipe 8 is connected with the water inlet end of a water pumping pump 10 through a total water outlet pipe 11, then, a drainage conduit 13 is connected with the water outlet end of the water pumping pump 10, so that extracted underground water can enter a water collecting well 14, the water pressure of the bottom plate is controlled through the self-flow pressure reducing valve 9, the control is easy to control, if water in the water collecting well 14 exceeds a sleeve 20, a piston 21 drives a spring 22 to approach an end cover 19 under the action of water pressure, after a positioning rod 23 is inserted into the blind hole 25, due to the continuous action of water pressure, the piston 21 opens the end cover 19, water collecting well is automatically and water in the water collecting well 14 flows into the water collecting well to the water collecting well through the water collecting main pipe through the water collecting pipe, and the water collecting pipe is discharged by the spring 17, and the water outlet pipe is discharged by the spring and the original position of the piston 21.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (6)
1. The utility model provides a control structure of bottom plate water pressure in deep basal pit foundation ditch bottom plate construction, includes foundation ditch (1) and collector well (14), its characterized in that: underground diaphragm wall (2) is arranged outside foundation ditch (1), foundation ditch (1) bottom is stratum (4), at least one blind ditch (7) has been laid on stratum (4), communication ditch (6) has been laid between two adjacent blind ditches (7), communication ditch (6) link up with blind ditch (7), filling layer (15) have all been laid in communication ditch (6) and blind ditch (7), the top of filling layer (15) is equipped with isolation layer (3), foundation ditch bottom plate (5) are installed at the top of isolation layer (3), and install a plurality of drain pipe in filling layer (15), the top of drain pipe runs through isolation layer (3) and foundation ditch bottom plate (5) and installs artesian pressure relief valve (9), the top of drain pipe is equipped with water collecting main (8), water collecting main (8) link to each other with self-flow pressure relief valve (9) through the pipeline, total outlet pipe (11) are installed at the top of water collecting main (8), just the top of foundation ditch (1) is equipped with water pump (10), water pump (10) are connected with water pump (10), one end of the drainage conduit (13) far away from the water pump (10) extends to a water inlet of the water collecting well (14), an automatic drainage mechanism (18) is arranged on the upper portion of the water collecting well (14), the automatic drainage mechanism (18) comprises a sleeve (20) and two telescopic connecting pieces, one end of the sleeve (20) penetrates through the water collecting well (14), the other end of the sleeve is connected with an end cover (19) in a sliding manner, a piston (21) is connected in the sleeve (20) in a sliding manner, one end of the piston (21) is provided with a positioning rod (23), a spring (22) is sleeved on the outer side of the positioning rod (23), and two ends of the spring (22) are connected with the end cover (19) and the piston (21) respectively;
the end cover (19) is of a cylindrical structure with one end open, a movable ring plate (27) is arranged at the open end of the end cover (19), a fixed ring plate (26) is arranged on one side, far away from the end cover (19), of the movable ring plate (27), and the fixed ring plate (26) is sleeved outside the sleeve (20) and fixedly connected with the sleeve (20);
the two telescopic connecting pieces are symmetrically arranged, each telescopic connecting piece comprises a movable barrel (28) and a fixed rod (30), one end of each fixed rod (30) penetrates through the movable barrel (28) and is provided with a baffle (31), the other end of each fixed rod (30) is provided with a mounting plate (29), the mounting plates (29) are fixedly connected with the fixed ring plates (26), the movable barrels (28) are in sliding connection with the fixed rods (30), and one end, far away from the mounting plates (29), of each movable barrel (28) is fixedly connected with the movable ring plates (27);
the end cover (19) is close to one end of locating lever (23) and installs fixed column (24), blind hole (25) have been seted up to the center department of fixed column (24), blind hole (25) and locating lever (23) assorted.
2. The control structure of the bottom plate water pressure in the deep foundation pit bottom plate construction according to claim 1, wherein: municipal pipe network (17) has been laid in the outside of sump pit (14), just sump pit (14) are linked together with municipal pipe network (17) through automatic drainage mechanism (18).
3. The control structure of the bottom plate water pressure in the deep foundation pit bottom plate construction according to claim 1, wherein: the drain pipe is a metal pipe, and the diameter of the drain pipe is 38-110 mm.
4. The control structure of the bottom plate water pressure in the deep foundation pit bottom plate construction according to claim 1, wherein: the outer wall of the water pump (10) is provided with a controller (12), and the controller (12) is electrically connected with the water pump (10) and the self-flow pressure reducing valve (9) through wires respectively.
5. The control structure of the bottom plate water pressure in the deep foundation pit bottom plate construction according to claim 1, wherein: cement mortar layers (16) are smeared on the groove walls of the communication grooves (6) and the blind grooves (7), and the upper side and the lower side of the filling layer (15) are respectively a pebble layer and a gravel layer.
6. The control structure of the bottom plate water pressure in the deep foundation pit bottom plate construction according to claim 1, wherein: the isolation layer (3) is a concrete layer, and the thickness of the isolation layer (3) is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210607847.0A CN114775666B (en) | 2022-05-31 | 2022-05-31 | Control structure of bottom plate water pressure in deep foundation pit bottom plate construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210607847.0A CN114775666B (en) | 2022-05-31 | 2022-05-31 | Control structure of bottom plate water pressure in deep foundation pit bottom plate construction |
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| Publication Number | Publication Date |
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| CN114775666A CN114775666A (en) | 2022-07-22 |
| CN114775666B true CN114775666B (en) | 2024-03-01 |
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| CN115419093A (en) * | 2022-09-26 | 2022-12-02 | 中建港航局集团有限公司 | Bottom plate construction method during piping of deep foundation pit with underwater channel interface |
| CN118065406A (en) * | 2024-04-22 | 2024-05-24 | 北京建工四建工程建设有限公司 | Sinking type temporary slope building for easily-degraded slope |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205421511U (en) * | 2016-03-18 | 2016-08-03 | 吴光周 | Automatic arrange well cover |
| CN213628983U (en) * | 2020-09-24 | 2021-07-06 | 日照金丰机械制造有限公司 | Valve capable of preventing backflow |
| CN113931209A (en) * | 2021-09-30 | 2022-01-14 | 上海宝冶集团有限公司 | Large-area deep foundation pit weakly permeable stratum underground water level control method |
-
2022
- 2022-05-31 CN CN202210607847.0A patent/CN114775666B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205421511U (en) * | 2016-03-18 | 2016-08-03 | 吴光周 | Automatic arrange well cover |
| CN213628983U (en) * | 2020-09-24 | 2021-07-06 | 日照金丰机械制造有限公司 | Valve capable of preventing backflow |
| CN113931209A (en) * | 2021-09-30 | 2022-01-14 | 上海宝冶集团有限公司 | Large-area deep foundation pit weakly permeable stratum underground water level control method |
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| CN114775666A (en) | 2022-07-22 |
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